Level Measurement & Control

Level switch with float

September 2020 Level Measurement & Control

Instrotech now offers Kobold’s M-series level switch comprising a float that slides up and down with the liquid, along a guide tube. Thus, up to four reed contacts moulded in the guide tube are switched in a non-contacting fashion by a ring magnet encapsulated in the float. The hermetically sealed contacts are available as normally closed, normally open or changeover versions. In this way, many simple tasks such as automatic signalling of empty/full tanks and automatic tank filling can be performed by a control relay.

Brass, stainless steel, PP, PVC, NBR and PVDF are available as a choice of materials, practically ensuring measurement of almost all media. The maximum medium temperature is 150°C and the maximum pressure is 100 bar. Guide tube lengths from 40 mm to 6000 mm are possible, which can be installed on a vessel top via flange or thread connection.

Depending on the float type, these level switches can be used for mediums having density as low as 0,5 kg/dm³. A compact design with small float diameters (starting from 18 mm) allows installation of these switches in containers with limited space. When top installation is not possible, the alternative model MS switch, suitable for side mounting, is recommended and operates exactly as described above. Other benefits include:

• Simple installation.

• Long electrical service life due to sealed contacts.

• High degree of operational reliability with air gap between guide tube and floats.

• Installation in the top or the bottom of a vessel.

• Several levels can be monitored with one float.

• Open/close function or changeover contact available.


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Fit for extreme applications
March 2021, Endress+Hauser South Africa , Level Measurement & Control
The first 2-wire loop-powered compact transmitter enters the market.

Battery powered digital temperature gauges
March 2021, Instrotech , Temperature Measurement
hese gauges offer a wide range of industrial and analytical possibilities for applications where high accuracy and clear indication are required.

Pressure sensors for complete systems
March 2021, Instrotech , Pressure Measurement & Control
There are often great benefits to optimising pressure sensors specifically for use and integration into higher-level complete systems.

The Internet of Things is changing logistics
March 2021 , Level Measurement & Control
A focus on application engineering allows Trafo Power Solutions to supply customised dry-type transformers for a range of sectors including renewable energy. “We begin at the proposal stage by engaging ...

Exact determination of fuel consumption
April 2021, Instrotech , Flow Measurement & Control
The Kobold DOE, an oval gear flowmeter, can be used with a wide range of media and chemicals

Inductive flowmeter with IO-Link
February 2021, Instrotech , Flow Measurement & Control
Instrotech is pleased to announce a new product development in Kobold’s magnetic inductive flowmeter range, featuring IO-Link.

Radar is the better ultrasonic
February 2021, VEGA Controls SA , Level Measurement & Control
Radar signals are not significantly influenced by changing ambient conditions, which makes them highly reliable and extremely accurate.

Optimum flow restriction at low cost
January 2021, Instrotech , Flow Measurement & Control
Kobold REG flow restrictors are ideally suited for the simple restriction to a pre-set throughput value of water, or liquids similar to water.

Kobold’s calorimetric flow meter
January 2021, Instrotech , Flow Measurement & Control
The electronic flow monitor model KAL-D works according to the calorimetric principle, continuously monitoring water-based liquids.

Reed level transmitter suitable for food applications
November 2020, WIKA Instruments , Level Measurement & Control
WIKA has expanded its range of level transmitters with reed measuring chain by adding the model FLR-F for food applications.